Re: [PATCH v10 09/14] x86/sgx: Implement async reclamation for cgroup

["Haitao Huang" <haitao.huang@xxxxxxxxxxxxxxx>]

On Thu, 04 Apr 2024 06:16:54 -0500, Huang, Kai <kai.huang@xxxxxxxxx> wrote:

> On Wed, 2024-03-27 at 17:22 -0700, Haitao Huang wrote:
> >   void sgx_cgroup_init(void)
> >  {
> > +	sgx_cg_wq = alloc_workqueue("sgx_cg_wq", WQ_UNBOUND | WQ_FREEZABLE,  
> > WQ_UNBOUND_MAX_ACTIVE);
> > +
> > +	/* All Cgroups functionalities are disabled. */
> > +	if (WARN_ON(!sgx_cg_wq))
> > +		return;
> > +
>
> I don't think you should WARN(), because it's not a kernel bug or  
> similar.  Just
> print a message saying EPC cgroup is disabled and move on.
>
> 	if (!sgx_cg_wq) {
> 		pr_err("SGX EPC cgroup disabled: alloc_workqueue() failed.\n");
> 		return;
> 	}


Sure
Thanks
Haitao